The SARL-S (Société à Responsabilité Limitée Simplifiée) is a streamlined version of the classic SARL, designed by Luxembourg’s legislature to lower the barrier to entrepreneurship. Its main appeal lies in a minimum share capital of just €1, combined with a simplified incorporation procedure that does not require a notarial deed.

Originally introduced to encourage business creation in low-capital service sectors, the SARL-S shares the fundamental advantages of the classic SARL: shareholder liability limited to contributions, standard taxation under corporate income tax (CIT), municipal business tax (MBT) and net wealth tax (NWT). It therefore offers full legal protection without any financial barrier to entry.

In return for this accessibility, the legislature has imposed strict restrictions. Capital is capped at €11,999, certain activities — finance, holding companies, insurance — are formally prohibited, and the manager must be a natural person. The SARL-S is therefore a stepping stone to entrepreneurship, not a long-term growth structure: as soon as the project scales, conversion to a classic SARL becomes necessary.

This guide sets out the legal framework, practical advantages, limitations to anticipate and the steps involved in converting to a standard SARL. For a broader comparison of available legal forms, see our company formation page or our guides on the SA and SAS.

1. Legal characteristics of the SARL-S

1.1. Share capital and payment

The share capital of a SARL-S ranges from €1 to €11,999. It must be fully paid up at incorporation. Only cash contributions are permitted — contributions in kind are not allowed under this simplified form.

Criterion	SARL-S	Classic SARL
Minimum capital	€1	€12,000
Maximum capital	€11,999	Unlimited
Payment	100 % at incorporation	100 % at incorporation
Contributions in kind	Not permitted	Permitted (auditor’s report)

1.2. Shareholders and management

The SARL-S may have between 1 and 100 shareholders, identical to the classic SARL. However, one key restriction sets it apart: the manager must be a natural person. It is therefore impossible to appoint a holding company as manager, which rules out the SARL-S for group structuring schemes involving a SOPARFI.

1.3. Formation without a notary

A SARL-S can be formed by private deed (without a notary), using model articles of association provided by the Trade and Companies Register (RCS). This simplification reduces both timelines and launch costs.

Note: The absence of a notary does not exempt the company from RCS registration or publication in the RESA. These formalities remain mandatory.

2. Practical advantages of the SARL-S

The SARL-S is ideally suited to low-investment service projects:

Advantage	Detail	Typical profile
Capital from €1	No financial barrier to entry	Freelancers, consultants, coaches
No notarial deed	Model articles, accelerated procedure	Quick launch, market testing
Low formation costs	Save €1,500–3,000 in notary fees	Micro-businesses, solo activities
Limited liability	Personal assets protected, same as SARL	All entrepreneurs
Same tax treatment as SARL	CIT, MBT, NWT — no special regime	Activities subject to corporate tax

Practical example: A communications consultant can incorporate a SARL-S with €100 of capital, start trading within days and test the market without tying up cash. If the activity grows and requires investment, conversion to a classic SARL can follow later.

3. Limits and restrictions

3.1. Capital cap at €11,999

The SARL-S may under no circumstances exceed a capital of €11,999. As soon as the company’s needs — investments, hiring, working capital — outgrow this ceiling, conversion to a classic SARL is mandatory, requiring a notarial deed and a capital increase to at least €12,000.

3.2. Prohibited activities

The legislature formally excludes the SARL-S from the following sectors:

Prohibited sector	Required legal form
Financial services, asset management	SARL, SA
Stock-exchange operations (incl. crypto-assets)	SA, SARL
Financial holding companies (SOPARFI)	SA, SARL
Insurance, reinsurance, brokerage	SA
Investment funds	SA, SAS
Pure holding	SA, SARL

These restrictions reflect the legislator’s intention to reserve the SARL-S for genuine service activities, preventing its use as a financial vehicle with a token capital.

3.3. Reinforced legal reserve

Each financial year, the SARL-S must allocate 5 % of its net profit to a legal reserve fund. This obligation continues until the reserve reaches €12,000 — the minimum capital of a classic SARL. During this period, the company’s dividend distribution capacity is mechanically reduced.

Practical consequence: Once the €12,000 reserve is constituted, the SARL-S must be converted into a classic SARL. This mechanism makes the SARL-S a temporary legal form by design.

3.4. Banking and commercial credibility

A share capital of a few euros can hinder relations with third parties:

• Banks may be reluctant to open a business account or grant financing
• Certain suppliers or institutional clients may require a higher minimum capital
• Public tenders may impose equity thresholds

4. Business permit

The SARL-S does not exempt the entrepreneur from obtaining a business permit (autorisation d’établissement). If the intended activity is commercial, artisanal or a regulated profession, this permit must be obtained from the Ministry of the Economy before RCS registration. The manager’s professional qualifications are verified in the same way as for any other legal form.

Important: If the SARL-S’s corporate purpose does not fall within an activity subject to the right of establishment, the SARL-S form is prohibited. The SARL-S is reserved for activities requiring a business permit.

5. Formation process

Step	Indicative timeframe	Detail
Drafting the articles (RCS model)	1–3 days	Private deed, no notary required
Opening a bank account	1–3 weeks	Deposit of capital (€1 minimum)
RCS registration	2–5 days	Filing of the complete dossier
RESA publication	Automatic	Handled by the RCS
Business permit	Variable	Mandatory depending on the activity
VAT identification (AED)	1–2 weeks	If the activity is subject to VAT

Indicative total cost: €200–500 (excluding share capital) — a significant saving compared to the classic SARL (€2,500–5,000 including notary fees). Our company formation team handles the entire process.

6. When to convert the SARL-S into a classic SARL

Conversion is a natural growth step. It becomes necessary in the following situations:

Trigger	Explanation
Legal reserve reaches €12,000	Mandatory conversion required by law
Capital needs exceed €12,000	Financing investments, hiring or working capital
Seeking investors	Providing a credible structure with meaningful capital
Financial or holding activity	Sectors prohibited for the SARL-S
Appointing a legal-entity manager	Group structuring impossible under SARL-S
Banking difficulties	Strengthening credibility with financial institutions

The conversion is carried out by notarial deed, with a capital increase to at least €12,000. The total cost (notary fees + RCS charges) typically ranges from €1,500 to €2,500. Contact our company formation specialists for a precise estimate.

7. Accounting and tax obligations

The SARL-S is subject to the same obligations as the classic SARL:

Obligation	Deadline
Maintain proper accounting records	Ongoing
File annual accounts with the RCS	Within one month of the AGM
Tax returns (CIT, MBT, NWT)	31 May of year N+1
Allocate 5 % of net profit to the legal reserve	Each financial year
VAT returns	Quarterly or monthly
Payroll management	If employees are hired

Manager remuneration and any benefits in kind (company car, housing) follow the same tax rules as for a classic SARL. A domiciliation address is required throughout the company’s existence.